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Finding the Fourth Proportional to 66,635.28, 99,952.88 and 17,387.28

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Solution

The fourth proportional to 66,635.28, 99,952.88 and 17,387.28 is: 26,080.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,635.28 : 99,952.88 = 17,387.28 : x
  2. Step 2: Convert to fraction form
    66,635.28/99,952.88 = 17,387.28/x
  3. Step 3: Cross multiply
    66,635.28x = 99,952.88 × 17,387.28
  4. Step 4: Simplify right side
    66,635.28x = 1,737,908,711.37
  5. Step 5: Solve for x
    x = 1,737,908,711.37/66,635.28
  6. Step 6: Final answer
    x = 26,080.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.